What Is Phthalates?

In plain English: Phthalates are a group of chemicals used to make scents last longer and plastics more flexible. In cleaners they usually ride along inside "fragrance," and several are linked to hormone disruption.

Also listed as: diethyl phthalate, DEP, plasticizers, phthalate esters

The honest science

In short: phthalates are typically hidden inside the trade-secret word “fragrance,” and several — including DEP — are recognized endocrine disruptors. 12 Our full guide below covers exactly how they get into cleaners and how to shop around them in plain-English detail.

Where you'll find it

  • scented all-purpose sprays
  • laundry detergent
  • fabric softener
  • air fresheners
  • dish soap

The safer-swap angle: The simplest way to dodge fragrance phthalates is to pick fragrance-free products or ones that fully disclose their scent, since phthalates almost always hide inside the word "fragrance."

→ Read the full deep-dive guide on Phthalates

Frequently asked questions

How do phthalates get into cleaners?

They're commonly added to fragrance blends to make the scent last longer. Because fragrance is a trade secret, the phthalates aren't listed by name on the label.

Are phthalates endocrine disruptors?

Several are recognized as endocrine disruptors, meaning they can interfere with hormone signaling. Certain phthalates are specifically linked to effects on testosterone and reproductive development.

How can I avoid them?

Choose fragrance-free products or brands that fully disclose their scent ingredients. Since phthalates typically hide inside "fragrance," removing hidden fragrance removes the most likely source.

Sources

  1. Endocrine Disruptors — NIEHS / NIH
  2. What are phthalates? — Environmental Working Group

Ingredient safety data changes as new research is published, and product formulas change over time. Always read the current label and check primary sources.

Related terms

← Back to the full ingredients glossary

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